NO20074745L - Method and system for imaging resistivity contrasts in the subsurface - Google Patents

Method and system for imaging resistivity contrasts in the subsurface

Info

Publication number
NO20074745L
NO20074745L NO20074745A NO20074745A NO20074745L NO 20074745 L NO20074745 L NO 20074745L NO 20074745 A NO20074745 A NO 20074745A NO 20074745 A NO20074745 A NO 20074745A NO 20074745 L NO20074745 L NO 20074745L
Authority
NO
Norway
Prior art keywords
subsurface
response
resistivity contrasts
source
measuring
Prior art date
Application number
NO20074745A
Other languages
Norwegian (no)
Inventor
Anton Ziolkowski
Bruce Hobbs
Graham Dawes
David Wright
Original Assignee
Mtem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mtem Ltd filed Critical Mtem Ltd
Publication of NO20074745L publication Critical patent/NO20074745L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/083—Controlled source electromagnetic [CSEM] surveying

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

En fremgangsmåte for kartlegging av resistivitetskontraster i undergrunnen omfatter å ta flerkanals, elektrisk transientmålinger ved minst en elektrisk kilde med jordinngangselektroder eller en magnetisk kilde med strøm i en eller flere ledningssløyfer, og minst en elektrisk eller magnetisk feltmottaker, å måle den resulterende jordrespons samtidig ved hver mottaker ved å benytte et kjent registreringssystem, å måle systemresponsen ved å måle direkte strømmen i ledningen ved kilden under bruk av omtrent samme registreringssystem, å bruke den målte systemresponsen til å avdekke impulsrespons til undergrunnen fra hver målt jordrespons, og fra disse impulsresponsene å frembringe en undergrunnsrepresentasjon av resistivitetskontraster.A method for mapping resistivity contrasts in the subsurface comprises taking multi-channel, electrical transient measurements at at least one electrical source with ground input electrodes or a magnetic source of current in one or more wiring loops, and at least one electric or magnetic field receiver, simultaneously measuring the resulting ground response receiving a known recording system, measuring the system response by directly measuring the current in the line at the source using about the same recording system, using the measured system response to detect the impulse response to the subsurface from each measured ground response, and from these impulse responses to generate a subsurface representation of resistivity contrasts.

NO20074745A 2005-03-14 2007-09-17 Method and system for imaging resistivity contrasts in the subsurface NO20074745L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0505160.2A GB0505160D0 (en) 2005-03-14 2005-03-14 True amplitude transient electromagnetic system response measurement
PCT/GB2005/004773 WO2006114561A2 (en) 2005-03-14 2005-12-13 True amplitude transient electromagnetic system response measurement

Publications (1)

Publication Number Publication Date
NO20074745L true NO20074745L (en) 2007-10-09

Family

ID=34509002

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20074745A NO20074745L (en) 2005-03-14 2007-09-17 Method and system for imaging resistivity contrasts in the subsurface

Country Status (9)

Country Link
US (1) US7957904B2 (en)
EP (2) EP2477046A2 (en)
CN (1) CN101176017A (en)
AU (1) AU2005330955B2 (en)
BR (1) BRPI0520134A2 (en)
CA (1) CA2601119A1 (en)
GB (1) GB0505160D0 (en)
NO (1) NO20074745L (en)
WO (1) WO2006114561A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0505160D0 (en) 2005-03-14 2005-04-20 Mtem Ltd True amplitude transient electromagnetic system response measurement
US8002635B2 (en) * 2008-03-24 2011-08-23 Shyh-Jye Wang Apparatus and method of impact emulation for video games
US8063642B2 (en) * 2008-06-11 2011-11-22 Mtem Ltd Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources
US8400157B2 (en) * 2008-08-29 2013-03-19 Geotech Airborne Limited Bucking coil and B-field measurement system and apparatus for time domain electromagnetic measurements
US8050865B2 (en) * 2008-10-31 2011-11-01 Baker Hughes Incorporated System and method for measuring resistivity parameters of an earth formation
US8258791B2 (en) 2009-01-27 2012-09-04 Mtem Ltd. Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources to impart electromagnetic signals into a subsurface formation and thereby determining a formation response to each signal
US8143897B2 (en) * 2009-02-11 2012-03-27 Mtem Ltd. Short-offset transient electromagnetic geophysical surveying
US20110141850A1 (en) 2009-12-15 2011-06-16 Pgs Onshore, Inc. Electromagnetic system for timing synchronization and location determination for seismic sensing systems having autonomous (NODAL) recording units
US9075164B2 (en) 2012-05-02 2015-07-07 Baker Hughes Incorporated Apparatus and method for deep transient resistivity measurement
US9310511B2 (en) 2012-11-01 2016-04-12 Baker Hughes Incorporated Apparatus and method for deep transient resistivity measurement
US9354347B2 (en) 2012-12-13 2016-05-31 Baker Hughes Incorporated Method and apparatus for deep transient resistivity measurement while drilling
CN103630941B (en) * 2013-01-30 2016-08-24 中国科学院电子学研究所 Long line source pseudorandomcode is launched and array reception transient electromagnetic system and method
US9274241B2 (en) * 2013-03-14 2016-03-01 Pgs Geophysical As Method and system for suppressing swell-induced electromagnetic noise
GB201405977D0 (en) * 2014-04-02 2014-05-14 Univ Edinburgh A receiver apparatus and method
SG11201700990TA (en) 2014-08-29 2017-03-30 Pgs Geophysical As Joint estimation of electromagnetic earth responses and ambient noise
CN104502980B (en) * 2014-12-08 2017-07-28 中国科学院电子学研究所 A kind of discrimination method of electromagnetic Earth impulse response
CN104391335A (en) * 2014-12-10 2015-03-04 中国科学院地质与地球物理研究所 Extracting method of transient electromagnetic pure abnormal signal
CN104360399B (en) * 2014-12-10 2017-01-04 中国科学院地质与地球物理研究所 Transient electromagnetic detecting method and device under long wired earth seedbed
US10274635B2 (en) 2015-02-16 2019-04-30 Pgs Geophysical As Joint inversion of subsurface resistivity and noise parameters
CN106125145A (en) * 2016-06-30 2016-11-16 北京工业大学 Mt weighting function identification method and system based on broadband LFM driving source

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA18895A1 (en) * 1979-07-09 1981-04-01 Cie Generale De Geophysique Sa METHOD AND DEVICE FOR GEOPHYSICAL PROSPECTION WITH TRANSIENT CURRENTS
US4710708A (en) * 1981-04-27 1987-12-01 Develco Method and apparatus employing received independent magnetic field components of a transmitted alternating magnetic field for determining location
AU654945B2 (en) * 1990-03-21 1994-12-01 Bergwerksverband Gmbh Bedrock exploration system using transient electromagnetic measurements
GB0121719D0 (en) 2001-09-07 2001-10-31 Univ Edinburgh Method for detection fo subsurface resistivity contrasts
DK1597610T3 (en) 2003-02-13 2015-06-15 Bubioil Aps Measuring equipment and method for mapping the geology of an underground formation
US7771938B2 (en) 2004-09-20 2010-08-10 Wisconsin Alumni Research Foundation Nonlinear spectroscopic methods for identifying and characterizing molecular interactions
GB0505160D0 (en) 2005-03-14 2005-04-20 Mtem Ltd True amplitude transient electromagnetic system response measurement
GB0604829D0 (en) 2006-03-10 2006-04-19 Mtem Ltd Optimisation of mtem parameters
GB0616784D0 (en) 2006-08-24 2006-10-04 Mtem Ltd Reduction of noise in electrical field measurements
GB0616870D0 (en) 2006-08-25 2006-10-04 Mtem Ltd Improvements In Marine EM Exploration
GB0702661D0 (en) 2007-02-12 2007-03-21 Mtem Ltd Improvements in marine EM exploration

Also Published As

Publication number Publication date
CN101176017A (en) 2008-05-07
EP2477046A2 (en) 2012-07-18
AU2005330955B2 (en) 2010-10-14
AU2005330955A1 (en) 2006-11-02
BRPI0520134A2 (en) 2009-08-18
CA2601119A1 (en) 2006-11-02
EP1859303A2 (en) 2007-11-28
GB0505160D0 (en) 2005-04-20
US7957904B2 (en) 2011-06-07
WO2006114561A3 (en) 2007-09-07
WO2006114561A2 (en) 2006-11-02
US20090216454A1 (en) 2009-08-27

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